(* ::Package:: *)

inv = {{0., 0., 0., 0.}, {0., 0., 0., -3.398088489694245}, 
     {0., 0., -2.942830956382712, -1.6990442448471226}, 
     {0., -2.7745276335252114, -0.9809436521275706, -1.6990442448471226}, 
     {-0.24028114141347542, -0.6936319083813028, -0.9809436521275706, 
      -1.6990442448471226}, {0.8981365593438025, 2.7437225604241213, 
      -0.9809436521275706, -1.6990442448471226}}
 
MM = {{2, 0.}, {10.570366003947878, 29.644435923791924}}
